WSO2 Complex Event Processor (CEP) is a lightweight and easy-to-use, 100% open source middleware product, available under Apache License v2.0. WSO2 CEP identifies the most meaningful events within the event cloud, analyzes their impacts, and acts on them in real time. It's built to be extremely high performing and massively scalable.

This documentation is structured by main features and topics of the CEP. Therefore, for a more comprehensive coverage of the entire CEP, its important subject areas, and the advanced configurations, we recommend that you spend some time with the documentation structure before digging into the content. You can get a high-level view of the main topics covered by going through the left navigation panel of the online documentation or the table of contents in a printed version.

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